Dust-proof and fireproof receptacle for moving-picture films.



0. JAMES. DUS II. PROOF AND FIREPROOF REOEPTAGLE POE MOVING PICTURE FILMS.

-APPLICATION FILED JAN.'20, 1912.

Patented July 30, 1912.

ATTORNEY.

UNITED STATES PATENT OFFICE.

c AnLEs JAMES, or CAMBRIDGE; onto, AssIeNon or .TWO-THIRDS 'ro WILLIAM H. I

:Bmmronn AND GEORGE :o. NICHOLSON, BQTH or CAMBRIDGE, o'nIo.

nosr-rnoor AND rmnrn'oor nncEr'rAcLE FOR novme-rrcronn FILMS.

Specification of Letters Patent. Patented J 30, 1912.

Application filed January 20, 1912. Serial No. 672,501.

To all whom it may concern.

Be it known that I, CHARLES J AMES, a citizen of the United States, residing at Cambridge, in the county of Guernsey and State of Ohio, have invented anew and useful Dust-Proof and Fireproof Receptacle for Moving-Picture Films, of which the following is aspecification.

My invention relates to improvements in receptacles for moving picture films and has for its ob ects, first :to provide a dust-'- proof receptacle for moving picture films,

which protects the films l rom dust and from, which the films can beeasily and convenient ly removed, in the, order inc-which they are to be exhibited, and thus avoid the ,usual contusion and delay, in selecting-the parprotected from destruction by fire which 'frejquently starts durin" the operation of ticular' film desired; and second :-to prot'ide afire-proof receptacle whereby the films, which are highly inflammable, are

moving picture machines. I attainthese I objects by the mechanism illustrated in the accompanying drawing, in which.

Figure 1, is a view -in perspective of the exterior of the' receptacle, Fig. 2, a vertical section of the complete receptacle, on the line 3, 4., (Fig. 1), showing the double wallsa a, lid Z, door- (Z, and the filling f between the walls: Fig. 3 is a sectional view of; the

receptacle in which (2 represents the door in-- eluding a section, of the bottom 70, whlch' swings on the hinge h.

Similar letters refer to similar parts throughout the several views.

The double walls a a are composedof rolled steel, sheet iron, or cast iron, and are separated by an intervening space of 2 inches, which is filled with a mixture, of asbestos, carbonate of soda,in the following I proportions :two parts asbestos and one part carbonate of soda.

The lid Z, is formed with beveled edge e, in order that it may be held more firmly in place when closed.

The door (2, opens horizontally and con sists of a section of the side or wall of the receptacle, and a section of the bottom thereof as shown in. Figs. 2 and .3. The lid Z, and

door (I are held in place bythe spring hinges hjh and h, h" (Fig. 1). The springs of the hinges h h and h it," are made-sulficient-ly strongto, automatically, close the lid Z, and door (Z, and hold them tightly and firmly closed, until opened by the operator.

The door (Z, is constructed with a lap which" fits closely to the exterior of the side of the receptacle and prevents any water or' dust .from entering at that point.

The door Z, consists o fa part of the bottom 7:, so as to render it more convenient to remove thereel orfil'm' by placing the finthe opening-at the bottom is. The films are the door d, at the bottom as above described.

and after being exhibited they are replaced in the receptacle at the top thereof, and are re'adyfor use in their order again. In'case of fire the heat causes thecarbonate of'soda tojproduce carbonic acid gas within the space between the double walls a (l, and-being a nonconductor 'ofheat prevents the in? ner compartment from becoming sufficiently hotto cause'combustion.

' I claim:

The'combi'nation in a receptacle 'for mov- .ing picture films, constructed with doublev walls throughout,- and rendered fire-proof by any; substance that is a non-conductor of heat placed between said walls, said receptacle being supplied with a lid at the top and door at the bottom, which close auto- .matically and are held firmly closed by means of strong spring hinges, substantially as shown, for the purposes specified.

CHARLES JAMES.

Witnesses:

W. A. BRI'ITON, E. SINGER. 

